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7 months agoWhy does the rotator cuff get injured?
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To raise your arm, the deltoid muscle needs to engage. It's well-suited for this task, but as it works, it rolls the head of the humerus upward.
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In a healthy shoulder, this upward roll is balanced by muscles that insert near the head of the humerus from below, such as the subscapularis and teres minor.
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However, if these muscles don't engage properly, the humerus head will roll upward, reducing the space available for the supraspinatus tendon to slide under the acromion.
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This increased friction weakens the tendon over time leading to injury.
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Find a way to activate the subscapularis and teres minor while raising your arms and your rotator cuff will heal naturally.
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#anatomy #biomechanics #rotatorcuff #rotatorcuffrehab #shoulderpain #shouldermobility